Pegasus is one of the most striking constellations in the autumn sky, with the Great Square serving as its central landmark. This asterism, easily visible to the naked eye, is composed of four bright stars—Alpheratz, Scheat, Algenib, and Markab—making it a reliable guide for tracing the rest of the constellation. Stargazers can locate Pegasus by first finding the Summer Triangle in the western sky, then turning south to see the square. For those in the Northern Hemisphere, this celestial marker becomes increasingly prominent as summer transitions to fall. The Great Square's altitude also shifts throughout the night, offering optimal viewing opportunities during specific hours.